Home / 724,920.28-1,000,362.31-402,651.05

Finding the Fourth Proportional to 724,920.28, 1,000,362.31 and 402,651.05

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Solution

The fourth proportional to 724,920.28, 1,000,362.31 and 402,651.05 is: 555,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,920.28 : 1,000,362.31 = 402,651.05 : x
  2. Step 2: Convert to fraction form
    724,920.28/1,000,362.31 = 402,651.05/x
  3. Step 3: Cross multiply
    724,920.28x = 1,000,362.31 × 402,651.05
  4. Step 4: Simplify right side
    724,920.28x = 402,796,928,493.49
  5. Step 5: Solve for x
    x = 402,796,928,493.49/724,920.28
  6. Step 6: Final answer
    x = 555,643.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.